Messages in this thread | | | Date | Mon, 14 Mar 2005 14:11:28 -0800 | From | Andrew Morton <> | Subject | Re: inode cache, dentry cache, buffer heads usage |
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Badari Pulavarty <pbadari@us.ibm.com> wrote: > > On Thu, 2005-03-10 at 17:47, Andrew Morton wrote: > > Badari Pulavarty <pbadari@us.ibm.com> wrote: > > > > > > So, why is these slab cache are not getting purged/shrinked even > > > under memory pressure ? (I have seen lowmem as low as 6MB). What > > > can I do to keep the machine healthy ? > > > > Tried increasing /proc/sys/vm/vfs_cache_pressure? (That might not be in > > 2.6.8 though). > > > > > > Yep. This helped shrink the slabs, but we end up eating up lots of > the lowmem in Buffers. Is there a way to shrink buffers ?
It would require some patchwork. Why is it a problem? That memory is reclaimable.
> $ cat /proc/meminfo > MemTotal: 16377076 kB > MemFree: 7495824 kB > Buffers: 1081708 kB > Cached: 4162492 kB > SwapCached: 0 kB > Active: 3660756 kB > Inactive: 4473476 kB > HighTotal: 14548952 kB > HighFree: 7489600 kB > LowTotal: 1828124 kB > LowFree: 6224 kB >
How'd you get 1.8gig of lowmem? - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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